Window sill



1953 c. l. GIRSCHOWITCH 2,663,389

' WINDOW SILL Filed March 13, 1951 3a g INVENTQR.

52w 9. fiw 'lil Patented Dec. 22, 1953 UNITEDv STATES i TENT OFFICE WINDOW SILL Charles I. Girschowitch, New York, N. Y.

Application March 13, 1951, Serial No. 215,234

1 Claim.

The present invention relates to improvements in window sills, and more particularly to a metal, such as aluminum, window in which the various elements that make up the sill, jambs and head piece are composed of extruded metal shapes, to provide a strong frame when welded or otherwise secured in place, one object of the invention being the provision of an awning-type window which has no exposed operating elements, and which when th sashes are closed, presents a relatively fiat and ornate appearance.

Another object of the present invention is the provision of an awning-type aluminum window in which the sashes are connected for synchronous movement, are when closed water and substantially air tight, are easily operated by a hand crank from the inside, but which in multiple may be motor operated, and in which the mechanical parts are concealed from view by proper casement design.

In. order that the invention may be fully understood and its many advantage appreciated, attention is invited to the drawings, in which:

Figure 1 is a front view of the complete window, a portion of one jamb being opened to show the gear box and sash operating mechanism.

Figure 2 is a vertical section through the right side jamb, head and sill of Fig. 1, showing the sash operating mechanism and the sill structure.

Figure 3 is a cross section on line 33 of Fig. 1.

Referring to the drawings, the numeral I designates the complete frame of the present window, which is shown here as made of extruded,

aluminum, but which may be made of other metals, and in some instances of wood. This frame comprises a hollow sill 2, two hollow jambs 3 and a hollow head 4. These parts are each composed of extruded metal parts, and will be described later on.

Journaled longitudinally of and within the sill is a rock shaft 5, carrying a gear 6 near to or adjacent one end within a unit gear box 1, which is so constructed as to be quickly removed and replaced, and yet firmly attached to the outer wall of the sill, to form also a journal for that respective end of the rock shaft.

Adjacent to the gear box and also within the sill at the other end of the rock shaft are cranks 8, which extend upwardly into the lower ends of the respectiv jambs. Pivotally connected to the respective cranks are links 9, which in turn are connected to the respective arcuate levers l0, two to a sash H, so that when the rock shaft is operated through its companion gear, and the short shaft it with a detachable hand crank.

2 all sashes will be synchronously operated from closed to open, or vice versa. positions.

Each sash is composed of a metal frame l5, having side sealing flanges Hi and lower overlapping sealing flange 16, so that when the sashes are closed they provide water and substantially air tight joints with the sides of the j ambs and adjacent sashes.

Two hinging lugs I! are carried by each sash, so that a. removable hinge pin l8 can be employed to hang them for swinging movements, and to be housed when the sashes are closed by the respective adjacent portions of the head 4, and sashes. Each sash is provided with a pane IQ of glass, with a proper holding and sealing element 20.

It will be noted that the top rail 2| of each sash is provided with right angle strip 22, which when the adjacent sash is in closed position, receives the short longitudinal strip 23 of the sash above, and thus provides a rectangular chamber the'full length of both sashes, and permits the gear mechanism to be slightly forced to cause a tight fit at this point to exclude rain, while the upper sashs rail has a shorter longitudinal strip 24 to abut an outwardly bent or formed coacting strip 25 of the head 4.

By this construction when the sashes are fully closed, the hinges are protected, and the sashes at all points where rain might leak into the spaces about the sashes and the frame.

The sill 2, as shown in Fig. 3, is composed of extruded shape members and consists of the bottom strip 26, having the angled portion 21, the parallel integral reinforcing strips 28, the upstanding rim 29, the modified T-shaped in cross section recessed strip providing a longitudinal recess 3| for the reception of the lower edge of the rear plate 32, which is preformed to have the right-angled member 33, welded or otherwise secured to the short longitudinal lip 34 of the upper plate 35 of the hollow sill. This upper plate has an integral right-angled portion 36, and a face strip or member parallel with the rear plate 32, a longitudinal groove or recess 38 being formed in an apron 31 thereof, which receives the lip strip of the lower sash.

These elements, that is the sill, jambs and head are all securedly formed of their respective members and secured together to form the rectangular frame of the window structure, there being provided slits or elongated slots 50 in the jambs to permit the operation of the arcuate brackets, these being the only normally open elements of the structure. The members of 3 the jambs are removable from the inside, to permit access to the operating mechanism, as are also the sill sections 32-33.

From the foregoing description, it is evident that the present design is such that the sill, jambs and head, as well as the metal frame of each sash can be made of extruded members, to be assembled and secured by riveting, screws, bolts and/or welding as may be found desirable and most expedient.

What is claimed is:

An awning type window having a hollow extruded metal sill, which sill consists of a bottom strip, one edge of which is provided with an angled portion, the body of which is above and parallel with the main body of the strip and provided with a longitudinal recess at the lower edge of the bottom strip, and with an upstanding right angled rim at the remote edge from the angled portion; an upper plate provided with a forward right angled portion terminating in a box like modified U-shaped portion, the lower inturned edge of which fits under the angled portion of the bottom strip and forms therewith a housing for a driving mechanism for the window; a closure member having a central longitudinal short portion parallel with the bottom strip when the parts are assembled, and two oppositely disposed members at right angles respectively to the central short portion and adapted to fit against the rear upper edge of the upper plate and the rear edge of the bottom strip; and a securing means carried by the bottom strip to receive the lower edge of the closure member.

CHARLES I. GD tSCI-IOWITCH.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 855,696 Corbett June 4, 1907 911,35 Wiegert Feb. 2, 1909 1,241,090 Campbell Sept. 25, 1917 1,497,517 Lane June 10, 1924 1,572,309 Rappaport Feb. 9, 1926 1,645,2 2 Ferguson Oct, 11, 1927 1,897,643 Reese Feb. 14, 1933 1,906,997 Neeb May 2, 1933 1,909, 11 Kuney May 16, 1933 2,247,435 Cerny July 1, 1941 2,257,703 Peremi et al Sept. 30, 1941 2,270,348 Rumney Jan. 20, 1942 

